RE: FEEDBACK REQUESTED -- RE: 3gpp-analysis-04: Transition mechan isms at UEs; 3GPP IPv6 deployment [issue 6] (fwd)

[Marc Blanchet <Marc.Blanchet@hexago.com>]

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-- mercredi, septembre 03, 2003 12:57:55 -0400 Soliman Hesham
<H.Soliman@flarion.com> wrote/a ecrit:

> 
> 
>  > - if the UE is dual stack (anyway), then to save one PDP context, you
>  > tunnel the other IP version on the established PDP context. example:
>  >  + your PDP context is IPv4. you need IPv6: tunnel v6 in v4.
> 
> => Where does the IPv6 address come from? Unless you have 
> a v6 PDP context you can't get an IPv6 address.

if you use some tunneling technique, then you will get one. Tunnel broker,
as an example, will give the tunnel endpoint (UE) through the TSP session
the ipv6 address to use over the tunnel. It could also send the ipv6 prefix
in case the UE is a router/gateway to a personal network. Other tunnelling
techniques will give the Ipv6 address (6to4 or teredo based on the ipv4
address).

> 
>  >  + your PDP context is IPv6. you need ipv4: tunnel v4 in v6.
> 
> => Same for the IPv4 address. 

again, as an example, tunnel broker with tsp and dstm will provide the iPv4
address.

Marc.

> 
> Hesham
> 



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Marc Blanchet
Hexago
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